* {
    margin: 0;
    padding: 0;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
    color: #000;
}

a:hover ul {
    background-color: #ccc;
}

h1 {
    text-align: center;
    border-bottom: 1px solid #ff4400;
}

.animation {
    box-shadow: 0 0 4px 0 #ccc;
    width: 1200px;
    margin: 20px auto;
    padding: 30px;

}

.header {
    height: 100px;
}

h3 {
    width: 1200px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    font-size: 24px;
    font-weight: 300;
}

.animation-describe {
    width: 1200px;
    height: 50px;
    line-height: 30px;
    box-shadow: 0 0 4px 0 #ccc;
    display: none;
}

.body,
.leg {
    display: flex;
    flex-wrap: wrap;
    height: 300px;
    margin-bottom: 5px;
    position: relative;
}

.animation .attribute {
    width: 280px;
    height: 50px;
    box-shadow: 0 0 4px 0 rgb(37, 68, 114);
    margin: 10px;
    text-align: center;
    line-height: 50px;
}

.describe {
    width: auto;
    height: auto;
    box-shadow: 0 0 4px 0 rgb(37, 68, 114);
    margin: 10px;
    line-height: 30px;
    display: none;
    padding-left: 5px;
}

.name-describe,
.iteration-cunt-describe {
    position: absolute;
    top: 70px;
}

.duration-describe,
.direction-describe {
    position: absolute;
    top: 70px;
    left: 300px;
}

.timing-function-describe,
.fill-mode-describe {
    position: absolute;
    top: 70px;
    left: 600px;
    line-height: 24px;
}

.delay-describe,
.play-state-describe {
    position: absolute;
    top: 70px;
    left: 900px;
}